Actions
All four quadriceps are powerful extensors of the knee joint. They are crucial in walking, running, jumping and squatting. Because rectus femoris attaches to the ilium, it is also a flexor of the hip. This action is also crucial to walking or running as it swings the leg forward into the ensuing step. The quadriceps, specifically the vastus medialis, plays the important role of stabilizing the patella and the knee joint during gait.
Read more about this topic: Quadriceps Femoris Muscle
Famous quotes containing the word actions:
“Now that Stevenson is dead I can think of but one English- speaking author who is really keeping his self-respect and sticking for perfection. Of course I refer to that mighty master of language and keen student of human actions and motives, Henry James.”
—Willa Cather (1873–1947)
“Virtue is relative to the actions and ages of each of us in all that we do.”
—Plato (c. 427–347 B.C.)
“Can it be borne, this bodying-forth by wind
Of joy my actions turn on, like a thread
Carrying beads?”
—Philip Larkin (1922–1986)